Using Screencast-O-Matic

VSS provides a free Screencast-O-Matic Team Deluxe license to all V-VSS presenters to help you create and caption your video presentation. Screencast-O-Matic provides tools for recording, uploading, and captioning your video. Prior to Screencast-O-Matic, we recommend you review their Training Videos.

You are not required to use Screencast-O-Matic to create your video. However, you will need to caption your video.

Installing Screencast-O-Matic

Instructions for installing and licensing Screencast-O-Matic.

  1. Go to
  2. Check I agree to the Terms of Service and click Launch the Recorder.
  3. This will initiate the download of the desktop application. You should see Launching… at the bottom of your screen. If the download does not start, click the Download link.
  4. Download, install, and launch the Screencast-O-Matic application.
  5. Enter the Team Plan Password that was emailed to you. If you don’t know the password, email us at .
  6. Screencast-O-Matic should now be running. See the instructions below for recording, captioning, and uploading your presentation video.

Recording Video

Screencast-O-Matic has a screen recorder for creating presentation videos. If you prefer, you may use another method for creating your video, and then import your video into Screencast-O-Matic for captioning (see Importing Video).

  1. In the Screencast-O-Matic desktop application, first set your recording options. Click the gear icon if the Record options are not visible.
    • Select Screen to record only your screen. Select Both to record your screen with you inset using your webcam. if recording both, drag the inset webcam window to the desired location.
    • To ensure that you keep within the time limit, set Max Time to 12 minutes for Talks and 6 minutes for Poster Tours.
    • Set the Size of the recording area. Try 720p first, then go to a higher resolution if you are not getting adequate quality.
    • Test your microphone by speaking and verifying that green bars appear following Narration.
    • Leave Computer Audio set to on ‘No’ to avoid recording computer sounds.
    • Click Preferences for other settings.
  2. Position the recording frame over the area you wish to record.
  3. Click the red Record button to start recording.
  4. Click Pause to stop recording.
  5. Click the Play icon to preview what you’ve recorded.
  6. Click Done to save your recording, or click the trashcan icon to start over.
  7. From the popup menu, click Edit Video. Here you can make changed to your video. Click Done after editing your video.
  8. Click Back to Recordings (upper left) and proceed to Captioning Your Video below.

Importing Video

If you don’t use Screencast-O-Matic to record your video, you can import a video from your computer.

  1. From the Screencast-O-Matic Recordings screen, click Import (upper right).
  2. Select a video file from your computer.
  3. The selected video is imported into the Screencast-O-Matic desktop application for editing and captioning.

Editing Your Video

  1. From the Screencast-O-Matic Recordings screen, select a video.
  2. Select Edit from the pop-up menu.
  3. You can crop your video and make other changes.
  4. Save your changes by clicking Done.

Captioning Your Video

All V-VSS presentation videos must be open captioned. Open Captioned means the captions are embedded into the video and are visible on a black bar below the video frame. Screencast-O-Matic’s auto-caption feature uses machine speech-to-text translation (which can have difficulty getting scientific terms correct), so you will need to carefully review your captions for accuracy.

Be sure your video is in its final state before captioning. Making changes to your video after you caption it could result in having to restart the captioning process.

IMPORTANT: Captioning can take time, so don’t leave it to the last minute.

  1. From the Screencast-O-Matic Recordings screen, select a video.
  2. the CC (Closed Caption) icon (lower right).
  3. Select Speech-to-Text (EN-US), then click Start.
  4. Screencast-O-Matic will start to auto-caption your video.
  5. Wait until auto-captioning is done. You can verify progress by scrolling to the bottom of the Captions Text sidebar.
  6. Review the captions in the Captions Text sidebar and make corrections.
  7. Click OK to save your captions.
  8. Click Back to Recordings (upper left) and proceed to Publishing Your Video File below.

Publishing Your Video File

To complete the video process, save your captioned video file to your computer, and then upload it to your MyVSS Account.

  1. From the Screencast-O-Matic Recordings screen, select a video.
  2. Cick Save as Video File from the Options menu (lower right).
  3. Set your publishing options:
    1. Type must be ‘MP4’.
    2. Enter a Filename.
    3. Enter the Folder your video file will be saved to.
    4. Indicate if you want your screen Cursor to appear in your video.
    5. Set Open Captions to English.
    6. For Quality, try ‘Normal’ first as this makes for a smaller file size, which will load and play faster on the website.
  4. Click Publish.
  5. After the video is saved to your computer, play it to verify the quality and that the captions are embedded. Verify that your video does not exceed the time limit.

Uploading Your Video

If you are scheduled to present at V-VSS, your MyVSS account home page will display option for paying your Presentation Fee. After you pay your Presenter Fee you will see an Upload Video button to upload your presentation file.

The maximum file size for uploading a MP4 video file is 2GB. The maximum file size for uploading a poster PDF is 20MB.

  1. Log in to your MyVSS Account.
  2. From your account home page, click Upload Video.
  3. Select your video file and upload it.
  4. Click View My Presentation to play your presentation as V-VSS attendees will see it.

You must upload your presentation files to your MyVSS Account no later than May 7.

You may upload revisions to your presentation files until the upload deadline of May 7. Uploading a new presentation file will overwrite your previously uploaded file. If you have not uploaded your presentation files by May 7, your abstract will be withdrawn and removed from the V-VSS 2021 meeting.

More Information

Also see see Presenter Instructions and Preparing Your Presentation.